That'd be either dark gray or light black......
Depending, of course, upon ocular conditions including, but not limited to:
retinal misalignment, corneal corrosion, ciliary confusion, & a host of other things that may/may not influence YOUR interpretation of colour...
And another thing...
If oranges are orange...
why don't they call lemons "yellows"
and limes "greens"???
........ ....